A massive comet known as 3I/ATLAS that was first discovered zooming across the solar system over the summer showed signs of ...

The 3I/ATLAS comet was first spotted in July near Jupiter after it entered our solar system from another universe. Here’s ...

An interstellar comet that originated outside our solar system just made its closest pass of the sun, setting it on an ...

When Comet 3I/ATLAS roared into the solar system this summer, it launched a scientific scramble to study what astronomers ...

The interstellar object 3I/ATLAS, also known as C/2025 P1 (ATLAS), has now passed its perihelion, the closest point to the ...

Perihelion for 3I/ATLAS takes place on Oct. 30, when the interstellar interloper will be 1.35 astronomical units (125 million ...

Comet 3I/ATLAS reaches its closest point to the Sun today, facing a final test of Avi Loeb's 'alien ship' theory. Will it ...

There is no evidence to support the idea that this interstellar object is anything but a comet, but let's double-check.

Manhattan-sized comet 3I/ATLAS — which scientists suspect could have extraterrestrial origins — will reach its closest ...

As 3I/ATLAS nears the Sun, scientists debate whether it’s a natural comet or something artificial. Follow its journey and the ...

After conjunction and perihelion, the comet has come out from behind the solar glare and the first image shared.

NASA and the European Space Agency are tracking the 3I/ATLAS interstellar object as it travels past Mars on its way toward the Sun and through the solar system.